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38242458 = 23210320627
BaseRepresentation
bin1001000111100…
…0100010011010
32122221220210100
42101320202122
534242224313
63443400230
7643025022
oct221704232
978856710
1038242458
111a650141
1210983076
137bcc897
145116a82
153556173
hex247889a

38242458 has 24 divisors (see below), whose sum is σ = 83667168. Its totient is φ = 12623112.

The previous prime is 38242453. The next prime is 38242481. The reversal of 38242458 is 85424283.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (38242453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8460 + ... + 12167.

It is an arithmetic number, because the mean of its divisors is an integer number (3486132).

Almost surely, 238242458 is an apocalyptic number.

38242458 is an abundant number, since it is smaller than the sum of its proper divisors (45424710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38242458 is a wasteful number, since it uses less digits than its factorization.

38242458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20738 (or 20735 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 38242458 is about 6184.0486738059. The cubic root of 38242458 is about 336.9110584845.

The spelling of 38242458 in words is "thirty-eight million, two hundred forty-two thousand, four hundred fifty-eight".

Divisors: 1 2 3 6 9 18 103 206 309 618 927 1854 20627 41254 61881 123762 185643 371286 2124581 4249162 6373743 12747486 19121229 38242458